Martin Stiemerling has entered the following ballot position for
draft-ietf-dnsop-edns-tcp-keepalive-04: No Objection

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COMMENT:
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Two comments for your considerations:

1) Section 3.3.2 is talking about this "It is reasonable for this value
to change [...] or in consideration of  intermediary behaviour (for
example TCP middleboxes or NATs)."
Can you please clarify how the DNS client or server is able to inspect
the behaviour of intermediated devices and adapt its behaviour
accordingly? This smells a bit like a half-baked idea which does not
belong into a standards track document. 


2) Section 3.6. talks about using Multipath TCP. Please note that
Multipath TCP is still experimental and has known security issues, which
are dealt with right now. Further, I would recommend to move this to a
non-normative appendix, noting that this is a potential future way
forward, but that is has not yet been tested and deployed. This would
also honor that RFC 6824 is listed in the informative part of the
references.


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